Autoclaved aerated concrete: Usage and application

Aerated concrete is a finely ground and aerated mixture of limestone and polished slate, which first forms a soft mineral foam in a steam oven. Once shaped hardened by hot autoclaving without notable dimensional shrinkage, then cooked and dried, it traps thanks to the mineral network of hydrated calcium silicates based on tobermorite (in), permanently and stably a large proportion of air and gas in a so-called cellular structure, which gives it good properties in terms of thermal insulation and lightness. 

What is aerated concrete?

Aerated concrete is a construction material intended for structural work. It is made up of natural materials: water, sand, cement, lime and an expanding agent (aluminum powder) to give it its airy properties. Its first characteristic is to be an ecological material, but beware, its manufacturing process is not really neutral on the environmental plan, especially as it contains cement and aluminum. Then, its composition makes it a solid, resistant and very light concrete.

What is aerated concrete used for?

Cellular concrete comes in the form of blocks, tiles or panels, which range from 5 to 30mm thick, very easy to install. These different elements are sealed together using a special adhesive mortar. Some can even clip to each other.

Aerated concrete is used in construction for work of the wall type (load-bearing or not), partition or ceiling, both indoors and outdoors. It is also used for various work of development or finishing, such as kitchen worktops for example.

Once covered with a plaster, autoclaved aerated concrete Malaysia supports accept different coatings (paint, tiling, etc.).

The advantages of aerated concrete

A very light material

When you think of concrete, you immediately think of heaviness and mass. Aerated concrete is none of that, quite the contrary. Its composition makes it an extremely light material and therefore very easy to handle, whether during manufacture, transport and implementation.

An excellent insulating material

Aerated concrete has the enormous advantage of being an excellent thermal insulator, but also phonic to a lesser extent. It minimizes the impact of large temperature variations in particular. During its manufacture, the aluminum powder used in its composition acts like a yeast and allows the concrete to gain volume. The air is then trapped in the cellular concrete in the form of small bubbles and gives it its insulating properties. This material therefore does not require an additional layer of insulation.

Easy to use

Due to its composition, it is not necessary to have specific tools to use aerated concrete. A simple manual saw is very suitable for cutting as long as you protect yourself because the dust emitted can be harmful. For more articles like this one, click here.

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